Question about weapon stats/proficiency bonus
Aight, so, hello folks, Im fairly new to starfinder2e, but theres seems to be a feature that i cant seem to wrap my head around. So im basing my campaign on the warframe module Project Orias, and in there weapons seem to have these numbers next to them that i think is the proficiency bonus, but im not sure. Essentially, itll just say +6 or +8 next to the weapon name, and im unsure if that just means i add that flat number to the roll as well as the dex modifier, cause otherwise that seems, well, a little busted, no? Like im not sure if this is a system where crits are more plentiful, but adding a flat number on top of the base d20 and the dex or str modifier seems weirdly strong, especially with how low the enemy acs seem to be.
Is it really just that simple, or am I missing something? I legitimately cant seem to find any info on this, which is why im turning to y'all for help.